If the contribution margin is not sufficient to cover fixed expenses: Multiple Choice O total profit equals total expenses. O contribution margin is negative. variable expenses equal contribution margin a loss occurs Mcmurtry Corporation sells a product for $280 per unit. The product's current sales are 13,900 units and its break-even sales are 10.425 units. The margin of safety as a percentage of sales is closest to: Multiple Choice 3396 25% 67% O 75%